0-100V Adjustable LiFePO4 Battery Charger - Smart 25A with LCD Display for Solar/RV/Boat

$151.99$159.995% OFF

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✓ 2-Year Charger Warranty

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✓ Lifetime Technical Support

Key Features

Grade-A LiFePO4 Cells — 4000+ Deep Cycles at 80% DoD

Smart 200A BMS — Overcharge, Over-discharge, Short Circuit & Thermal Protection

Maintenance-Free Drop-in Replacement for Lead-Acid Batteries

Wide Temperature Range -20°C to 60°C

Select Option

AC110V / DC100V/20A / Blue -5% AC110V / DC100V/20A / Blue $151.99$159.99
AC110V / DC100V/20A / Black -5% AC110V / DC100V/20A / Black $151.99$159.99
AC110V / DC100V/20A / Silver -5% AC110V / DC100V/20A / Silver $151.99$159.99
AC110V / DC60V/40A / Blue AC110V / DC60V/40A / Blue $159.99
AC110V / DC60V/40A / Black AC110V / DC60V/40A / Black $159.99
AC110V / DC60V/40A / Silver AC110V / DC60V/40A / Silver $159.99
AC220V / DC100V/20A / Blue -5% AC220V / DC100V/20A / Blue $151.99$159.99
AC220V / DC100V/20A / Black -5% AC220V / DC100V/20A / Black $151.99$159.99
AC220V / DC100V/20A / Silver -5% AC220V / DC100V/20A / Silver $151.99$159.99
AC220V / DC60V/40A / Blue AC220V / DC60V/40A / Blue $159.99
AC220V / DC60V/40A / Black AC220V / DC60V/40A / Black $159.99
AC220V / DC60V/40A / Silver AC220V / DC60V/40A / Silver $159.99

Compare Options

AC110V / DC100V/20A / Blue AC110V / DC100V/20A / Black AC110V / DC100V/20A / Silver AC110V / DC60V/40A / Blue AC110V / DC60V/40A / Black AC110V / DC60V/40A / Silver AC220V / DC100V/20A / Blue AC220V / DC100V/20A / Black AC220V / DC100V/20A / Silver AC220V / DC60V/40A / Blue AC220V / DC60V/40A / Black AC220V / DC60V/40A / Silver
AC110V / DC100V/20A / BlueAC110V / DC100V/20A / BlackAC110V / DC100V/20A / SilverAC110V / DC60V/40A / BlueAC110V / DC60V/40A / BlackAC110V / DC60V/40A / SilverAC220V / DC100V/20A / BlueAC220V / DC100V/20A / BlackAC220V / DC100V/20A / SilverAC220V / DC60V/40A / BlueAC220V / DC60V/40A / BlackAC220V / DC60V/40A / Silver
Input Voltage110V110V110V110V110V110V220V220V220V220V220V220V
Output Voltage0-100V adjustable0-100V adjustable0-100V adjustable0-60V adjustable0-60V adjustable0-60V adjustable0-100V adjustable0-100V adjustable0-100V adjustable0-60V adjustable0-60V adjustable0-60V adjustable
Output Current0-20A adjustable0-20A adjustable0-20A adjustable0-40A adjustable0-40A adjustable0-40A adjustable0-20A adjustable0-20A adjustable0-20A adjustable0-40A adjustable0-40A adjustable0-40A adjustable
Output PortClampClampClampClampClampClampClampClampClampClampClampClamp
ColorBlueBlackSilverBlueBlackSilverBlueBlackSilverBlueBlackSilver
Price $151.99$159.99 $151.99$159.99 $151.99$159.99 $159.99 $159.99 $159.99 $151.99$159.99 $151.99$159.99 $151.99$159.99 $159.99 $159.99 $159.99

Product Description

Two powerful models, one mission: full control over every charge. Choose the high-voltage 0-100V/25A for wide compatibility, or the high-current 0-60V/40A for faster charging.

The Capacity.Li Adjustable Charger is a precision power tool for LiFePO4 and lead-acid batteries. Available in two configurations — Model A (0-100V / 0-25A) for wide voltage range coverage, and Model B (0-60V / 0-40A) for high-current fast charging — it adapts to everything from small 12V starter batteries to large 48V/72V solar packs. Both models feature 3 output modes (Lead-Acid, Lithium, Power Supply), three-layer safety protection, and a smart LCD display with real-time monitoring.

0-100V
Model A — Output Voltage
0-25A
Model A — Output Current
0-60V
Model B — Output Voltage
0-40A
Model B — Output Current

Why Choose Capacity.Li?

Two Models, Maximum Flexibility

Model A (0-100V / 25A): Wide voltage range covers 12V through 96V systems — one charger for your entire fleet. Model B (0-60V / 40A): High-current output for 12V–48V batteries, cutting charge times in half when speed matters.

Precision Control

Voltage and current are continuously adjustable. Press-and-hold the knob for quick jumps, or rotate for fine-tuning. Parameters are saved between sessions.

Three-Layer Safety Protection

Reverse polarity, short-circuit, and over-temperature protection in all battery charging modes. Both models meet the same safety standard.

Smart LCD Display

9-zone LCD dashboard: voltage, current, temperatures (sensor + PCB), operating mode, auto-stop threshold, and elapsed time — all at a glance.

Auto-Stop Function

Set a current threshold in CV mode — when the charging current drops below it, the charger shuts down automatically. No overcharging, no babysitting.

Factory Direct Warranty

5-year warranty, 30-day money-back guarantee, free shipping over $99, and lifetime technical support on both models.

Electrical Specifications

DC Output Voltage 0-100V continuously adjustable 0-60V continuously adjustable
DC Output Current 0-25A adjustable (recommended ≤20A sustained) 0-40A adjustable (recommended ≤35A sustained)
AC Input Voltage 110V / 220V (model-dependent) 110V / 220V (model-dependent)
Display LCD — voltage, current, mode, temperature, elapsed time LCD — voltage, current, mode, temperature, elapsed time
Adjustment Method Rotation knob: press-and-hold for quick jump, rotate for fine-tuning Rotation knob: press-and-hold for quick jump, rotate for fine-tuning
Auto-Stop Threshold Adjustable current threshold in CV mode — charger shuts down when reached Adjustable current threshold in CV mode — charger shuts down when reached
Operating Temperature -20°C to 60°C -20°C to 60°C

Which Model Is Right for You?

Scenario Model A (0-100V / 0-25A) Model B (0-60V / 0-40A)
Single charger for many battery voltages ✓ Best choice — covers 12V to 96V ✓ Covers 12V to 48V
Fast charging of 12V / 24V batteries 25A max per battery ✓ Up to 40A — faster charge
72V / 96V e-bike / EV battery packs ✓ Full range up to 100V Max 60V — not suitable
Solar / off-grid 48V LiFePO4 systems ✓ Wide voltage headroom ✓ High current for larger banks
Lead-acid (6V / 12V) batteries ✓ Works, but 25A max ✓ 40A for faster recovery
Power supply mode (constant V/C) ✓ Flexible output range ✓ Higher current capacity

Three Output Modes

Lead-Acid Mode
Charges AGM, Gel, VRLA, and flooded lead-acid batteries. Includes reverse polarity + short-circuit protection.
💡
Lithium Mode
Charges LiFePO4 / Li-ion batteries. Reverse polarity + short-circuit protection. Recommended for most use cases.
Power Supply Mode
Constant-voltage / constant-current power supply. No reverse polarity or short-circuit protection — verify connections manually.

Built-In Safety Protection

🛡
Reverse Polarity Protection
LiFePO4 & Lead-Acid modes (both models)
Short-Circuit Protection
LiFePO4 & Lead-Acid modes (both models)
🌡
Over-Temperature Protection
All three modes (both models)

Note: Power Supply Mode does not include reverse polarity or short-circuit protection on either model. Always verify positive/negative connections before use.

Smart LCD Display Interface

The built-in LCD provides a comprehensive dashboard for monitoring and control. The display is divided into clearly labeled zones:

  • Sensor Temperature — real-time heat sink temperature
  • PCB Temperature — internal board temperature
  • Master Control Switch — on/off indicator
  • Voltage & Current Settings — up to 100V/25A (A) or 60V/40A (B)
  • Auto-Stop Settings — current threshold for automatic shutdown
  • Device Operating Status — CC / CV / standby
  • Output Mode — Lead-acid / Lithium / Power Supply
  • Operating Parameters — real-time voltage, current, power
  • Operating Time — elapsed charge duration

Charging Logic: In constant-current (CC) mode, high current quickly replenishes energy while voltage rises gradually. Once the battery voltage reaches the preset value, the system automatically switches to constant-voltage (CV) mode, and current decreases accordingly until the auto-stop threshold is reached. The charger retains all parameters after power-off.

How to Connect

1
Connect to AC Power
Plug in the AC power cord. Verify that the product model matches your input voltage (110V or 220V) before proceeding.
⚠ Do not connect a 110V unit to 220V or vice versa.
2
Set Parameters
Turn off the main power switch, then set voltage and current using the adjustment knob. Press-and-hold for quick jumps, rotate for fine-tuning.
⚠ Do not adjust voltage while the charger is running.
3
Connect the Battery
Connect the charger output to your battery using the included cables. In Lead-Acid and Lithium modes, the charger provides reverse polarity protection.
⚠ In Power Supply Mode, verify positive/negative terminals manually.
4
Turn On the Main Switch
The charger enters constant-current (CC) mode immediately. Voltage rises toward the preset value, then automatically switches to constant-voltage (CV) mode with decreasing current.
⚠ In CC stage, operating voltage is lower than the preset value and rises gradually.

Package Contents

  • 1 x Main Unit (charger with LCD display and adjustment knob)
  • 1 x AC Power Cord
  • 1 x XT60 to Anderson Cable
  • 1 x Anderson to Clamp Cable

Need a custom voltage, current, or connector? Our factory team will build it to your exact specifications.

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